I dont have access to real-time market prices, but I can tell you that generally, Multi Green Slate is considered a medium-priced natural stone, which varies depending on factors such as quality, thickness, quantity, and location. It is less expensive than high-end stones such as quartzite and marble but more expensive than some other natural stones like granite and some types of slate. It is essential to note that pricing also varies from supplier to supplier and location. Its advisable to obtain quotes from different suppliers to ensure you get the best price.